examples/filesystem: don't set VFS params by the application
examples/filesystem: don't set VFS params by the application

ant9000/RIOT,RIOT-OS/RIOT,miri64/RIOT,OlegHahm/RIOT,jasonatran/RIOT,authmillenon/RIOT,jasonatran/RIOT,RIOT-OS/RIOT,miri64/RIOT,authmillenon/RIOT,OTAkeys/RIOT,RIOT-OS/RIOT,OTAkeys/RIOT,kaspar030/RIOT,jasonatran/RIOT,ant9000/RIOT,kYc0o/RIOT,kYc0o/RIOT,kaspar030/RIOT,authmillenon/RIOT,kaspar030/RIOT,miri64/RIOT,ant9000/RIOT,OlegHahm/RIOT,authmillenon/RIOT,OTAkeys/RIOT,authmillenon/RIOT,OTAkeys/RIOT,kaspar030/RIOT,kYc0o/RIOT,OTAkeys/RIOT,authmillenon/RIOT,kYc0o/RIOT,ant9000/RIOT,miri64/RIOT,RIOT-OS/RIOT,jasonatran/RIOT,RIOT-OS/RIOT,OlegHahm/RIOT,kaspar030/RIOT,jasonatran/RIOT,OlegHahm/RIOT,OlegHahm/RIOT,kYc0o/RIOT,ant9000/RIOT,miri64/RIOT